Need help with 4x6 Gator 3 Cyl Diesel Engine problem.: Tractor Engine Repair Rebuild  -- Tractor Maintenance Discussion Forum and Review Need help with 4x6 Gator 3 Cyl Diesel Engine problem.: Tractor Engine Repair Rebuild -- Tractor Maintenance Discussion Forum

  parts   |   manuals   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index
New As Posted | Active Subjects



www.emerichsales.com - New & Used Equipment
          View Tractors For Sale!


www.partsbynet.com - Lawn and Garden Equipment Parts


Bernardsville Landscape Lighting
Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

Page [ 1 ] | 2 | | Next >>
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 04-05-2007, 05:42 Post: 141041
SgtKelly



Join Date: Apr 2007
Location: IRAQ
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

5
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

I'm with a Marine Corps Unit in Iraq. We have a John Deere Gator 4x6 Diesel here that nobody has seen work since we got here. Regardless, spent the last 20 hours working on it, and it will now start under it's own power. It will run for 20 seconds and then shut down like it's running out of fuel. Wait a few seconds and the cycle will repeat. The fuel filter and pump have been replaced with known good replacements from another one, and the problem still exists. Any help would be greatly appreciated. It goes without saying that out here, parts are not available, and diagnostic tools are limited to very basic things.

The Marines need your help!
Thanks alot for any assitance you can provide...


Edit:

I grabbed the following info off the engine:

Yanmar 3007D003

Engine Model: 3TN66G-EJUV






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 04-05-2007, 21:51 Post: 141068
Art White



View my Photos

View my Photos  Pics
Join Date: Jan 2000
Location: Waterville New York
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 6840

2
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

If that has an electric fuel shut off that might be the problem. To spray WD-40 in the intake would keep it running longer if you are running out of fuel.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 04-05-2007, 23:25 Post: 141076
SgtKelly



Join Date: Apr 2007
Location: IRAQ
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

5
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

It definately doesn't have an electric fuel shut-off.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 04-05-2007, 23:28 Post: 141077
kwschumm



View my Photos

View my Photos  Pics
Join Date: Feb 2003
Location: NW Oregon
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5764

3
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

I wonder if there's something in the fuel tank that is getting sucked up to the fuel pick-up and causing fuel starvation. When it shuts down the fuel pick-up clears up and the cycle can start all over again.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 04-05-2007, 23:31 Post: 141078
greg_g



View my Photos

View my Photos  Pics
Join Date: Jan 2004
Location: Western Kentucky
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1816

2
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

Remove the fuel filter, fill the fuel filter with diesel, replace the fuel filter, start the engine. When it dies, remove the fuel filter. If it's empty, it's not getting supplied sufficiently by the pump.

Refill and reinstall the filter, this time use the hand primer pump to push fuel in the direction of the filter. If this keeps the engine running, check for any inline filter screens that might be partially blocked. These will usually be inside a fitting (may be one in the tank too). Check to make sure the fuel cutoff valve is full open). If all this is good, it's probably the fuel pump. Not the injection pump, just the fuel pump component.

Keep up the good work over there. Thanks, from those that actually care.

//greg//






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 04-06-2007, 00:05 Post: 141079
SgtKelly



Join Date: Apr 2007
Location: IRAQ
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

5
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

Thanks. And you're always welcome! And thanks to all of those who came before us....
The Marine Corps loves it's country, and we hope our country feels the same about us....

The fuel filter is clear, and when it starts, you can see the fuel filling up the filter rapidly. Fuel flow IN/OUT of the filter is good. I will check for a screen and/or pickup screen on the tank side of the fuel system, there is definately nothing between the fuel pump (which is new and working properly), and the injection pump which is what I suspect the problem to be. Problem is that there's no way in hell we could get a head gasket unless someone in the states sent it out to us via regular mail. I'll go poke around the fuel tank side for a few minutes right now.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 04-06-2007, 00:15 Post: 141080
SgtKelly



Join Date: Apr 2007
Location: IRAQ
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

5
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

Also keep in mind the environment etc..

Repairs out here are a cross between McGyver and MADMAX and the thunderdome.

We make our own air filters out of coffee filters, duct tape for gaskets, etc....

Iraq is like a living junkyard wars episode.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 04-06-2007, 02:24 Post: 141082
SgtKelly



Join Date: Apr 2007
Location: IRAQ
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

5
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

The pickup tube / screen is clear, no debris in the tank.
The vent hose is in good shape / no restrictions.

So, good pickup, good filter, good fuel pump = problem with injector pump?






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 04-06-2007, 07:04 Post: 141084
greg_g



View my Photos

View my Photos  Pics
Join Date: Jan 2004
Location: Western Kentucky
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1816

2
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

I've had two Yanmar diesels in the past, a 24hp duece and a 22hp three banger. I can't quite feature how it would even start with a bad injection pump. Or are you using starting fluid? That said, both mine had conventional spin-on fuel filters. Are you sure that clear thing you're talking about isn't the sediment bowl?

Starting - running for a while - then dying, does point to either fuel or air. But the fact that it starts in the first place should indicate the injection pump is usable. Have you tried to keep it running yet with the hand primer pump?

If anybody ever used gas dryer in that tank before, that stuff doesn't play nice with diesel fuel and rubber. When hoses deteriorate from the inside out, they can clog filters and injectors. But they can also form flaps inside, which can block fuel. Sometimes it takes some fuel FLOW before a flap of loose rubber drops in place to ultimately stop the flow. Are you in a position to scrounge the junkyard for replacement hose or tubing?

And air. If you haven't already, take air filtration out of the equation. Disconnect it at the manifold, and let the intake suck in unfiltered air to see if that helps keep it running.

//greg//






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 04-10-2007, 19:58 Post: 141219
Art White



View my Photos

View my Photos  Pics
Join Date: Jan 2000
Location: Waterville New York
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 6840

2
Filter by User
 Need help with 4x6 Gator 3 Cyl Diesel Engine problem.

On most systems there is a fuel return line and if that is plugged that could cause this..






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] | 2 | | Next >>

Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

Thread 141041 Filter by Poster:
Art White 2 | bplatzer 1 | gatoraider 2 | greg_g 2 | kwschumm 3 | Murf 3 | robert1013 1 | SgtKelly 5 |




Most Viewed

+ Diesel engine spits oil from exhaust
+ HOW MANY TRACTOR HOURS IS TOO MANY HOURS?
+ Ford 1910 hydraulic problems
+ Need help with 4x6 Gator 3 Cyl Diesel Engine probl
+ yanmar 3 cyl desiel wont start
+ How to stop Mice Rodents eating Tractor Wiring
+ JD 870 not pulling its own weight
+ Yanmar 186D fuel problem
+ Honda small engines suck!
+ How to Start Honda small engines

Most Discussion

+ Ford 1910 hydraulic problems
+ Mice
+ Small Engine Start Problems
+ High pressure washer problem
+ JD 870 not pulling its own wei
+ Honda small engines suck!
+ Deisel coolant temperature
+ JD870--rops-lights
+ How to Start Honda small engin
+ Emergency Shut Down Valves

Newest Topics

+ Yanmar Fuel pump or primer bulb
+ New Holland TC26DA Ignition Switch Issues
+ New Holland TC26DA Ignition Switch Issues
+ Belarus 800 series
+ New Holland TC55DA 4 wheel drive tractor Boomer se
+ New Holland 3010S wiring problem
+ need rebuild kit
+ Deere 870 tractor with Yanmar ch3048d engine MOD 3
+ JD 4310 - pops out of gear
+ 393 Massey Ferguson dash light













Turbochargers for Tractors and Industrial Machines
Cab Glass for Tractors and Industrial Machines

Alternators for Tractors and Industrial Machines
Radiators for Tractors and Industrial Machines

Driveline Components for Tractors and Industrial Machines
Starter Motors for Tractors and Industrial Machines